@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400..800;1,400..800&family=Inter:wght@100..900&family=Space+Mono:ital,wght@0,400;0,700;1,400;1,700&display=swap');

:root {
    /* Colors */
    --color-surface: #000000;
    --color-surface-elevated: #0a0a0a;
    --color-surface-container: #1a1a1a;
    --color-on-surface: #f9fafb;
    --color-on-surface-variant: #9ca3af;
    --color-outline: #333333;
    
    /* Typography */
    --font-headline: 'EB Garamond', serif;
    --font-body: 'Inter', sans-serif;
    --font-meta: 'Space Mono', monospace;
    
    /* Spacing */
    --spacing-unit: 8px;
    --container-max: 1200px;
    --stack-lg: 128px;
    --stack-md: 64px;
    --stack-sm: 32px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--color-surface);
    color: var(--color-on-surface);
    font-family: var(--font-body);
    font-size: 18px;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Typography Scale */
h1, h2, h3 {
    font-family: var(--font-headline);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.headline-xl { font-size: clamp(48px, 8vw, 96px); }
.headline-lg { font-size: clamp(32px, 5vw, 64px); }
.headline-md { font-size: clamp(24px, 3vw, 48px); }

.label-sm {
    font-family: var(--font-meta);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-on-surface-variant);
}

/* Layout */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 64px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 24px;
    }
}

section {
    padding: var(--stack-lg) 0;
}

/* Components */
.btn {
    display: inline-block;
    padding: 16px 32px;
    border: 1px solid var(--color-on-surface);
    background: transparent;
    color: var(--color-on-surface);
    font-family: var(--font-meta);
    font-size: 14px;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: none; /* Instant transition as per DESIGN.md */
}

.btn:hover {
    background: var(--color-on-surface);
    color: var(--color-surface);
}

.card {
    border: 1px solid var(--color-outline);
    padding: 40px;
    background: var(--color-surface-elevated);
}

hr {
    border: none;
    border-top: 1px solid var(--color-outline);
    margin: var(--stack-sm) 0;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 40px 0;
    mix-blend-mode: difference;
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    color: var(--color-on-surface);
    text-decoration: none;
    font-family: var(--font-meta);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.6;
    transition: opacity 0.2s ease;
}

.nav-links a:hover {
    opacity: 1;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
}

.hero-image-container {
    width: 100%;
    height: 60vh;
    margin: var(--stack-sm) 0;
    overflow: hidden;
}

.hero-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: transform 0.5s ease;
}

/* Works Grid */
.works-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

@media (max-width: 768px) {
    .works-grid {
        grid-template-columns: 1fr;
    }
}

.work-item {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.work-image {
    aspect-ratio: 4/5;
    background: var(--color-surface-container);
    overflow: hidden;
}

.work-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%) brightness(0.8);
    transition: filter 0.3s ease, transform 0.5s ease;
}

.work-item:hover .work-image img {
    filter: grayscale(100%) brightness(1);
    transform: scale(1.05);
}

/* Footer */
footer {
    padding: var(--stack-md) 0;
    border-top: 1px solid var(--color-outline);
}

footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copyright {
    font-size: 10px;
    color: var(--color-on-surface-variant);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--color-surface);
}

::-webkit-scrollbar-thumb {
    background: var(--color-outline);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-on-surface-variant);
}